Ippocratis Bournellis, or DJ Grego (February 7, 1956September 16, 2010) was a DJ and producer from São Paulo, Brazil. Biography He began his career in São Paulo, Brazil, and was active in the world
1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4319207c6a514e12a278af2e8a52cb096c9c75e3251950ad229a24f4846ca321. Chain 2 (Bitcoin): anchored in block 953909 (2026-06-16T07:53:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0dfeab7b-7dfc-467f-9e2d-c2bbc83ca6ce.json and https://artists.proofprofile.net/proofs/artist/0dfeab7b-7dfc-467f-9e2d-c2bbc83ca6ce.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.